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Problem: We phased out our last CFC-degreaser to help patch the
alleged ozone hole.
Problem: We phased in Probimer 65M which ostensibly has slightly lower
adhesion than Probimer 52.
Problem: curtain-coated S/M peeling from reflowed tin/lead
Our standard surface prep for SMOBC is pumice (no brushes) but pumice
dulls the reflow finish and has been rejected by the customer for
aesthetics in the past. Customer is high-rel avionics and will likely
be a bit stubborn with design change recommendations.
Does anyone have a successful pre-clean method for S/M over reflow?
a conveyorized solder brite?
a non-CFC degreaser?
a solvent?
Thanks in advance.
Joe Felts
PC World, Toronto
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